Fuel Receiver Gauge Malfunction

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Fuel Receiver Gauge Malfunction
- Fuel Receiver Gauge Malfunction

DESCRIPTION

The meter CPU uses the fuel sender gauge assembly to determine the level of the fuel in the fuel tank. The resistance of the fuel sender gauge will vary between approximately 15 Ohms with the float at the full position, and 410 Ohms with the float at the empty position. The meter outputs battery voltage through two 820 Ohms resistors that are mounted in parallel inside the meter CPU. The meter CPU measures the voltage between the variable resistor in the fuel sender gauge and the two resistors mounted in parallel in the meter. Voltage measured at this point will vary as the float of the fuel sender gauge is moved. The highest voltage observed should be approximately half of the battery voltage.

HINT
The fuel level warning light will come on when the fuel level is below 11.0 liters (11.6 US qts, 9.7 Imp.qts).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication DTC is output Diagnosis System.

Result:





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

2. CHECK MULTIPLEX COMMUNICATION SYSTEM

(a) Check if Multiplex communication DTC is output Diagnosis System.

Result:





B -- GO TO MULTIPLEX COMMUNICATION SYSTEM How To Proceed With Troubleshooting
A -- Continue to next step.

3. PERFORM ACTIVE TEST USING TECHSTREAM (FUEL METER OPERATION)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter following menus: Body Electrical / Combination Meter / Active Test.

(e) Check the operation by referring to the table below.

Combination Meter





OK:

Fuel receiver gauge indication is normal.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.

4. READ VALUE USING TECHSTREAM (FUEL INPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter following menus: Body Electrical / Combination Meter / Data List.

(e) Check the values by referring to the table below.

Combination Meter





OK:

Fuel value signal displayed on the Techstream is almost the same as fuel receiver gauge indication.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.

5. INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Disconnect the P10 and Q14 connectors.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance: Fuel Sender Gauge Assembly (Main):





Standard Resistance: Fuel Sender Gauge Assembly (Sub):





Text in Illustration





Result:





B -- REPLACE FUEL SENDER GAUGE ASSEMBLY (for 4GR-FSE) Removal

C -- REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2GR-FSE) Removal
A -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SENDER GAUGE ASSEMBLY)

(a) Disconnect the J34 connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Disconnect the fuel sender gauge connector.





(b) Inspect the fuel sender gauge assembly (main).

(1) Remove the fuel sender gauge assembly (main) with harness connected.

(2) Check that the float moves smoothly between F and E.

(3) Measure the resistance between the terminals 1 (FE) and 2 (S) of the connector according to the value(s) in the table below.

Standard Resistance (Fuel Sender Gauge Assembly (Main)):





(c) Inspect the fuel sender gauge assembly (sub).

(1) Remove the fuel sender gauge assembly (sub).

(2) Check that the float moves smoothly between F and E.

(3) Measure the resistance between the terminals 1 (FS) and 2 (E) according to the value(s) in the table below.

Standard Resistance (Fuel Sender Gauge Assembly (Sub)):





Result:





Text in Illustration





B -- REPLACE FUEL SENDER GAUGE ASSEMBLY (for 4GR-FSE) Removal

C -- REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2GR-FSE) Removal
A -- Continue to next step.

8. REPLACE COMBINATION METER ASSEMBLY

(a) Replace the combination meter assembly with a new or a known good one Removal.

OK:

The operation of the combination meter assembly returns to normal.

Result:





B -- REPLACE ECM (for 4GR-FSE) Removal

C -- REPLACE ECM (for 2GR-FSE) Removal

A -- END